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Treiber für LED-Displays

TLC5929

AKTIV

16-Kanal-Konstantstrom-LED-Treiber mit 7 Bit globale Helligkeit, Stromsparfunktion und Selbstdiagnos

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Datenblatt

TLC5929

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Features Error Flag, Fault Detection, LED Open Detection, LED Short to Ground Detection, LED Short to VLED Detection, ON/OFF LED Driver, Power good, Thermal shutdown Data transfer rate (typ) (MHz) 33 Ch to ch accuracy (typ) (±%) 1.5 Rating Catalog Operating temperature range (°C) -40 to 85
Features Error Flag, Fault Detection, LED Open Detection, LED Short to Ground Detection, LED Short to VLED Detection, ON/OFF LED Driver, Power good, Thermal shutdown Data transfer rate (typ) (MHz) 33 Ch to ch accuracy (typ) (±%) 1.5 Rating Catalog Operating temperature range (°C) -40 to 85
HTSSOP (PWP) 24 49.92 mm² 7.8 x 6.4 SSOP (DBQ) 24 51.9 mm² 8.65 x 6 VQFN (RGE) 24 16 mm² 4 x 4
  • 16 Constant-Current Sink Output Channels with On/Off Control
  • Current Capability:
    • 40 mA (VCC ≤ 3.6 V)
    • 50 mA (VCC > 3.6 V)
  • Global Brightness Control: 7-Bit (128 Steps)
  • Power-Supply Voltage Range: 3.0 V to 5.5 V
  • LED Power-Supply Voltage: Up to 10 V
  • Constant-Current Accuracy:
    • Channel-to-Channel = ±1% (typ), ±3% (max)
    • Device-to-Device = ±2% (typ), ±4% (max)
  • Data Transfer Rate: 33 MHz
  • BLANK Pulse Width: 40 ns (min)
  • LED Open Detection (LOD)/LED Short Detection (LSD) with
    Invisible Detection Mode (IDM)
  • Output Leakage Detection (OLD) Detects 3 µA Leak
  • Pre-Thermal Warning (PTW)
  • Thermal Shutdown (TSD)
  • Current Reference Terminal Short Flag (ISF)
  • Power-Save Mode with 10-µA Consumption
  • Undervoltage Lockout Sets the Default Data
  • 2-ns Delayed Switching Between Each Channel Minimizes Inrush Current
  • Operating Temperature:
    –40°C to +85°C
  • 16 Constant-Current Sink Output Channels with On/Off Control
  • Current Capability:
    • 40 mA (VCC ≤ 3.6 V)
    • 50 mA (VCC > 3.6 V)
  • Global Brightness Control: 7-Bit (128 Steps)
  • Power-Supply Voltage Range: 3.0 V to 5.5 V
  • LED Power-Supply Voltage: Up to 10 V
  • Constant-Current Accuracy:
    • Channel-to-Channel = ±1% (typ), ±3% (max)
    • Device-to-Device = ±2% (typ), ±4% (max)
  • Data Transfer Rate: 33 MHz
  • BLANK Pulse Width: 40 ns (min)
  • LED Open Detection (LOD)/LED Short Detection (LSD) with
    Invisible Detection Mode (IDM)
  • Output Leakage Detection (OLD) Detects 3 µA Leak
  • Pre-Thermal Warning (PTW)
  • Thermal Shutdown (TSD)
  • Current Reference Terminal Short Flag (ISF)
  • Power-Save Mode with 10-µA Consumption
  • Undervoltage Lockout Sets the Default Data
  • 2-ns Delayed Switching Between Each Channel Minimizes Inrush Current
  • Operating Temperature:
    –40°C to +85°C

The TLC5929 is a 16-channel constant current sink LED driver. Each channel can be turned on or off by writing data to an internal register. The constant current value of all 16 channels is set by a single external resistor with 128 steps for the global brightness control (BC).

The TLC5929 has six error flags: LED open detection (LOD), LED short detection (LSD), output leakage detection (OLD), reference current terminal short detection (ISF), pre-thermal warning (PTW) and thermal error flag (TEF). In addition, the LOD and LSD functions have invisible detection mode (IDM) that can detect those errors even when the output is off. The error detection results can be read via a serial interface port.

The TLC5929 also has a power-save mode that sets the total current consumption to 10 µA (typ) when all outputs are off.

The TLC5929 is a 16-channel constant current sink LED driver. Each channel can be turned on or off by writing data to an internal register. The constant current value of all 16 channels is set by a single external resistor with 128 steps for the global brightness control (BC).

The TLC5929 has six error flags: LED open detection (LOD), LED short detection (LSD), output leakage detection (OLD), reference current terminal short detection (ISF), pre-thermal warning (PTW) and thermal error flag (TEF). In addition, the LOD and LSD functions have invisible detection mode (IDM) that can detect those errors even when the output is off. The error detection results can be read via a serial interface port.

The TLC5929 also has a power-save mode that sets the total current consumption to 10 µA (typ) when all outputs are off.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet 16-Ch, Constant-Curr LED Drvr w/7-Bit Brightness Cntrl, Pwr-Save Mode, Self-Diag datasheet (Rev. B) 24 Jul 2012
White paper Common LED Functions and LED Driver Design Considerations 21 Sep 2020
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
User guide Using the TLC5929, 16-Channel LED Driver 02 Jul 2012

Design und Entwicklung

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Evaluierungsplatine

TLC5929EVM-118 — Evaluierungsmodul TLC5929EVM-118

The Texas Instruments TLC5929EVM evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TLC59282 16-Channel Constant Current LED Driver with 7-Bit Global Brightness Control, Power-Save Mode, and Full Self-Diagnosis for LED Lamp. The TLC5929 is capable of driving up to (...)
Benutzerhandbuch: PDF
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Simulationsmodell

TLC5929 IBIS Model

SBVM077.ZIP (37 KB) - IBIS Model
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Simulationstool

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PSpice® für TI ist eine Design- und Simulationsumgebung, welche Sie dabei unterstützt, die Funktionalität analoger Schaltungen zu evaluieren. Diese voll ausgestattete Design- und Simulationssuite verwendet eine analoge Analyse-Engine von Cadence®. PSpice für TI ist kostenlos erhältlich und (...)
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HTSSOP (PWP) 24 Optionen anzeigen
SSOP (DBQ) 24 Optionen anzeigen
VQFN (RGE) 24 Optionen anzeigen
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